This article was previously published under Q181532
This article has been archived. It is offered "as is" and will no longer be updated.
NOTE: These procedures only apply if you have installed Outlook with the Internet Mail Only option. To determine your installation type, click About Microsoft Outlook on the Help menu. If you have the Internet Mail Only option installed, you see "Internet Mail Only".
For information about the differences between Microsoft Outlook and Microsoft Outlook Express e-mail clients, click the following article number to view the article in the Microsoft Knowledge Base:
257824 OL2000: Differences Between Outlook and Outlook Express
This article discusses the purpose and capacity of the Personal Storestorage facilities used by the Internet Mail Only installation of MicrosoftOutlook 98.
A Personal Folder file, also known as a .pst, is the medium for storingMail Application Program Interface (MAPI) objects created or received byMicrosoft Outlook 98. Unlike a MS-DOS or Windows file system, the .pst isonly accessible by a MAPI aware program such as Outlook.
One or more .pst files can reside on your computer. A .pst can bedefined as your primary store, meaning that your mail is delivered to theInbox in that file and all of your other default Outlook folders, such asCalendar, Contacts, Deleted Items, Journal, Notes, Sent Items, and Tasksreside there. Or, a .pst file can be defined as a secondary store, meaningyou can move items to it, either manually or with Inbox Rules, from yourprimary store.
Each .pst file can contain as many folders as you want and each folder cancontain a maximum of 16 Kilobytes (KB) records. The total file size ofa .pst cannot exceed 2 Gigabytes (GB).
For more information about this subject, please see the following articlesin the Microsoft Knowledge Base:
179743OL98: (IMO) Creating a New Personal Folder For anIMO Account